I have Shazam on my Blackberry (the phone and I are in a fight, but that's a whole different show), and I've been having fun with the app! I've heard a few cool songs that I've identified using Shazam:
Matisyahu - Miracle
John Butler Trio - Better Than
Van Morrison - Bright Side Of the Road
Bell X1 - Rocky Took A Lover
Neon Trees - Everybody Talks
Anyone else out there using Shazam?